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Finding the Fourth Proportional to 28,127.25, 38,816.82 and 15,552

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Solution

The fourth proportional to 28,127.25, 38,816.82 and 15,552 is: 21,462.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.25 : 38,816.82 = 15,552 : x
  2. Step 2: Convert to fraction form
    28,127.25/38,816.82 = 15,552/x
  3. Step 3: Cross multiply
    28,127.25x = 38,816.82 × 15,552
  4. Step 4: Simplify right side
    28,127.25x = 603,679,184.64
  5. Step 5: Solve for x
    x = 603,679,184.64/28,127.25
  6. Step 6: Final answer
    x = 21,462.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.